Home / 66,238.76-99,359.30-18,855.08

Finding the Fourth Proportional to 66,238.76, 99,359.30 and 18,855.08

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Solution

The fourth proportional to 66,238.76, 99,359.30 and 18,855.08 is: 28,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,238.76 : 99,359.30 = 18,855.08 : x
  2. Step 2: Convert to fraction form
    66,238.76/99,359.30 = 18,855.08/x
  3. Step 3: Cross multiply
    66,238.76x = 99,359.30 × 18,855.08
  4. Step 4: Simplify right side
    66,238.76x = 1,873,427,550.24
  5. Step 5: Solve for x
    x = 1,873,427,550.24/66,238.76
  6. Step 6: Final answer
    x = 28,282.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.